TA2022AFNG

1.5V AM/FM IF MPX

is the AM / FM IF + MPX system IC, which is developed for headphone radio in 1.5V use. This is included many functions and this can be used for digital tuning system with IF counter.

Features

•  Suitable for combination with digital tuning system which is included IF counter.

•  Built−in AM / FM IF count output for IF counter of digital tuning system.

 FM: 10.7MHz

 AM: 450kHz

•  Adjustable for stop pulse sensitivity in FM mode

•  For adopting ceramic discriminator, it is not necessary to adjust the FM QUAD detector circuit.

•  Built−in AM IF output for AM stereo

•  MPX input for main signal is independent of that for pilot signal. MPX input for pilot signal is shared with AM input

•  MPX output is high−impedance in power off mode.

•  Built−in power switch

•  Low supply current VCC= 1.2V, Ta = 25°C

 FM mode: ICC2= 5.5mA typ.

AM mode: ICC3= 3.7mA typ.

•  Operating supply voltage range Ta = 25°C VCC opr= 0.95~2.2V

•  Stereo operating supply voltage range Ta = 25°C VCC opr= 1.0~2.2V